3) intermittent crack media
非贯通裂隙介质
1.
Crack s influence on mechanical properties of the intermittent crack media;
裂隙对非贯通裂隙介质强度与变形特性影响的研究
4) non-interpenetrated crack material
非贯通裂隙介质
1.
Based on the analysis of relationship between damage evolution of crack and evolution of micro-crack,singularity damage variable and distribution damage variable have been defined,which can illustrate two kinds of damages,and the damage constitutive equation of non-interpenetrated crack material under uniaxial compressive condition has been built and validated by tests.
在对裂隙与孔隙、微裂隙两类不同层次损伤的演化特征与相互关系进行试验研究与分析的基础上,分别确定了表征这两类损伤的奇异损伤变量和分布损伤变量,推导了单轴压缩条件下非贯通裂隙介质损伤本构方程,并运用试验结果对其进行了验证。
6) coplanar close discontinuous joints
共面闭合非贯通节理
1.
Rock masses containing coplanar close discontinuous joints are commonly found in nature,and their failure mechanism and strength strongly depend on the properties of joints and rock bridges,which are defined as the areas between joints.
简述共面闭合非贯通节理岩体的破坏机制及其贯通强度依赖于节理和岩桥的特性,阐述现有的共面闭合非贯通节理岩体的强度准则及其不足。
补充资料:非极性电介质
非极性电介质
nonpolar dielectrics
非极.曲电介质nonpolar dieleetries由非极性分子组成的电介质。即无外电场时,分子的正、负电荷重心相重合,不具有永久或固有偶极矩。 非极性电介质一般都具有对称的分子结构,呈各向同性的球对称性,可由圆球非旋转对称群cocom或Tco、表示。一些单原子分子(如He、Ne、Ar、Kr和Xe等)、双原子分子(如HZ、NZ和C12等)以及结构对称的多原子分子(如COZ、C6H6和CCI‘等)都是典型的非极性分子。 常见的绝缘材料如聚乙烯、聚四氟乙烯、石蜡、聚异T烯、未硫化处理的橡胶和绝缘油(如变压器油等)均属于非极性电介质。未经极化处理的压电材料如压电陶瓷、压电聚合物等也属于广义非极性电介质的范畴。 (周志刚)
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条